Potential for culture of grey mullets (Pisces:Mugilidae) in Ghana

Dankwa, HR; Blay, John; Yankson, Kobina

doi:10.4314/gjs.v44i1.15897

Cited by 4 publications

(6 citation statements)

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“…Similarly, Scorvo-Filho et al (1995) found that the total biomass yield of Striped Mullet grown in a polyculture system with Common Carp was greater (P ≤ 0.05) than that of Striped Mullet reared in a monoculture system. Dankwa et al (2004) found that the rear-ing of Striped Mullet for 270 d in a monoculture system yielded 336.5 kg/ha of mullet in ponds with feed and 287.0 kg/ha in ponds without feed. The yield of Striped Mullet in the study by Dankwa et al (2004) was lower than that obtained for Striped Mullet and Thinlip Grey Mullet in the present study.…”

Section: Relative Yield and Production Efficiencymentioning

confidence: 99%

“…Dankwa et al (2004) found that the rear-ing of Striped Mullet for 270 d in a monoculture system yielded 336.5 kg/ha of mullet in ponds with feed and 287.0 kg/ha in ponds without feed. The yield of Striped Mullet in the study by Dankwa et al (2004) was lower than that obtained for Striped Mullet and Thinlip Grey Mullet in the present study. Increased growth and total yield in polyculture systems are related to better food utilization rather than to higher food consumption, since the FCR of Nile Tilapia was about 10.8% higher in MG than in the polyculture treatments.…”

Section: Relative Yield and Production Efficiencymentioning

confidence: 99%

“…Synergistic relationships can be achieved by enhancing utilization efficiency of natural feed resources, optimizing the use of the aquatic food web, and improving environmental conditions in the pond (Milstein 1995;Greglutz 2003;Billard and Berni 2004;Kotiya Anil et al 2010;Yuan et al 2010). Nile Tilapia are commonly reared in polyculture systems with species such as Common Carp Cyprinus carpio, Striped Mullet Mugil cephalus, catfish, Milkfish Chanos chanos, shrimp, and European Eel Anguilla anguilla (Guerrero and Guerrero 1976;James et al 1984;Papoutsoglou et al 1992;Abdel-Hakim et al 2000;Dankwa et al 2004;Kotiya Anil et al 2010;Biswas et al 2012).…”

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confidence: 99%

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The Effect of Stocking Different Ratios of Nile Tilapia Oreochromis niloticus, Striped Mullet Mugil cephalus, and Thinlip Grey Mullet Liza ramada in Polyculture Ponds on Biomass Yield, Feed Efficiency, and Production Economics

et al. 2013

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A 180‐d trial was done to evaluate the effect of stocking different ratios of Nile Tilapia Oreochromis niloticus, Striped Mullet Mugil cephalus, and Thinlip Grey Mullet Liza ramada on production and economic return in brackish‐water ponds. The trial was conducted in twelve 3,000‐m2 earthen ponds with four treatments (3 ponds/treatment): Nile Tilapia alone (100% Nile Tilapia, monoculture group [MG]); 75% Nile Tilapia and 25% Thinlip Grey Mullet (polyculture group 1 [PG1]); 75% Nile Tilapia, 12.5% Thinlip Grey Mullet, and 12.5% Striped Mullet (PG2); and 75% Nile Tilapia and 25% Striped Mullet (PG3). Fish were fed a commercial diet containing 25% crude protein twice per day. The efficiency of feed utilization was determined in terms of feed conversion ratio (FCR; feed intake/weight gain). Polyculture group 3 had the best FCR, whereas the FCR results did not differ significantly among the MG, PG1, and PG2 treatments. In addition, PG3 had the highest total yield (3,350.3 kg/pond), followed in descending order by PG2 (3,234.4 kg/pond), PG1 (3,078.4 kg/pond), and MG (2,856.3 kg/pond). The PG3 treatment achieved the highest net financial return, followed by PG2, PG1, and MG. This study indicates that tilapia–mullet polyculture may improve the efficiency with which natural food resources are used within the system, resulting in better environmental quality, system sustainability, feed utilization, and net financial return.

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Section: Relative Yield and Production Efficiencymentioning

confidence: 99%

Section: Relative Yield and Production Efficiencymentioning

confidence: 99%

mentioning

confidence: 99%

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The Effect of Stocking Different Ratios of Nile Tilapia Oreochromis niloticus, Striped Mullet Mugil cephalus, and Thinlip Grey Mullet Liza ramada in Polyculture Ponds on Biomass Yield, Feed Efficiency, and Production Economics

et al. 2013

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“…The survival rate upon completion of the three monitoring months was 76.66% (23 of the 30 individuals included in the experiment). However, mullets are known to be sensitive to handling, which causes loss of scales and makes them prone to bacterial and fungal infections resulting in mortality even several days after stocking (Yashouv, 1972;Dankwa et al, 2004). Certainly, the mortality rate observed in this study could be partially attributed to handling, in spite of the special care which was given to this activity.…”

Section: Resultsmentioning

confidence: 76%

Experimental Rearing of the Golden Gray Mullet Liza Aurata (Risso, 1810) in a Recirculating System at the Black Sea

Niță

Nenciu

Nicolae

2018

“Agriculture for Life, Life for Agriculture” Conference Proceedings

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Recirculating Aquaculture Systems (RAS) used in aquatic research and production are a viable alternative to traditional open-sea mariculture. The rearing of marine living resources in controlled environments is one of NIMRD’s constant concerns. Golden gray mullet Liza aurata (Risso, 1810) is spread in the Mediterranean, Black and Caspian Seas, as well as along the Atlantic coast, and culture in extensive and semi-intensive enclosures has been practiced worldwide for centuries, especially in the Far East and the Mediterranean, reaching a global production of 134,329 tons in 2010. The species’ potential for aquaculture is enhanced by its eurihalyne and eurithermal adaptability, allowing it to grow in a variety of ecosystems. The biological material used for the experiment was represented by golden gray mullet fingerlings fished using the beach seine from the Black Sea. They were monitored for health state, growth rythm (mean length and weight determinations), behavior under RAS conditions, survival rate and overall adaptability. The growth of juveniles after 90 days was 89.2% for total length and 246% for mean biomass. Concerning overall adaptability, after approximately one month, the golden gray mullet individuals fully adapted to rearing in the RAS tanks and handling during measurements. Moreover, the food administered (Skretting Classic K) was easily accepted, active feeding behavior being observed even in the presence of NIMRD’s staff. The fish’s health state was good, with no mortalities caused by infections or parasites. The survival rate upon completion of the two monitoring months was 76.66% (23 of the 30 individuals included in the experiment). The preliminary results obtained showed a good adaptability and a normal growth rate, which makes Liza aurata a potential candidate for aquaculture targeting the national and regional market.

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“…Similarly, Scorvo-Filho et al (1995) found that the total biomass yield of striped mullet grown in a polyculture system with common carp was greater than that of striped mullet reared in a monoculture system. Also, Dankwa et al (2004) reported that the economic efficiency and net return showed that the total income from polyculture was higher than those from the monoculture system. Furthermore, the economic and budget analyses revealed that tilapia-mullet polyculture is a feasible technique and can be ecologicalfriendly as well as economically attractive for tilapia farmers (Tahoun et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Impact of Mono- and Polyculture Systems on Growth Performance, Feed Utilization, and Economic Efficiency of Oreochromis niloticus, Mugil cephalus, and Mugil capito

Mehrim

Refaey

Khalil

et al. 2018

Journal of Animal and Poultry Production

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A field study was conducted to assess the effect of mono-and polyculture systems in net Hapas of monosex Nile tilapia (Oreochromis niloticus), striped mullet (Mugil cephalus) and /or thin-lipped mullet (M. capito) at different stocking ratios on growth performance, feed efficiency, chemical composition of the whole body, and economic efficiency parameters of experimental fish for 107 days rearing period. Five experimental treatments were represented as 100% Nile tilapia (T 1 , monoculture); 75% Nile tilapia: 25% striped mullet (T 2 , polyculture); 75% Nile tilapia: 13% striped mullet: 12% thin-lipped mullet (T 3 , polyculture); 50% Nile tilapia: 50% striped mullet (T 4 , polyculture) and 100% striped mullet (T 5 , monoculture). Fish of T 2 showed the highest significant of all growth performance, feed utilization, and economic efficiency parameters followed by the same fish species reared in polyculture system (T 4) at stocking ratio (50%: 50%) compared to other experimental fish-culture systems. Generally, it could be recommended that rearing monosex O. niloticus in polyculture system with M. cephalus at stocking ratio 75%: 25%, respectively (T 2) is more effective than other aquaculture systems under the experimental conditions of the present study.

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Potential for culture of grey mullets (Pisces:Mugilidae) in Ghana

Cited by 4 publications

References 0 publications

The Effect of Stocking Different Ratios of Nile Tilapia Oreochromis niloticus, Striped Mullet Mugil cephalus, and Thinlip Grey Mullet Liza ramada in Polyculture Ponds on Biomass Yield, Feed Efficiency, and Production Economics

The Effect of Stocking Different Ratios of Nile Tilapia Oreochromis niloticus, Striped Mullet Mugil cephalus, and Thinlip Grey Mullet Liza ramada in Polyculture Ponds on Biomass Yield, Feed Efficiency, and Production Economics

Experimental Rearing of the Golden Gray Mullet Liza Aurata (Risso, 1810) in a Recirculating System at the Black Sea

Impact of Mono- and Polyculture Systems on Growth Performance, Feed Utilization, and Economic Efficiency of Oreochromis niloticus, Mugil cephalus, and Mugil capito

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